- moved packet and socket in new network-package

2005-11-23 09:43:14 +00:00
parent 7cf14676db
commit 716abc9f83
18 changed files with 32 additions and 32 deletions
@@ -0,0 +1,130 @@
+/**
+ * @file packet.c
+ * 
+ * @brief UDP-Packet, contains data, sender and receiver.
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+
+#include "packet.h"
+
+#include <utils/allocator.h>
+
+
+/**
+ * Private data of an packet_t object
+ */
+typedef struct private_packet_s private_packet_t;
+
+struct private_packet_s {
+
+	/**
+	 * Public part of a packet_t object
+	 */
+	packet_t public;
+};
+
+/**
+ * Implements packet_t's destroy function.
+ * See #packet_s.destroy for description.
+ */
+static status_t destroy(private_packet_t *this)
+{
+	if (this->public.source != NULL)
+	{
+		this->public.source->destroy(this->public.source);
+	}	
+	if (this->public.destination != NULL)
+	{
+		this->public.destination->destroy(this->public.destination);
+	}
+	if (this->public.data.ptr != NULL)
+	{
+		allocator_free(this->public.data.ptr);
+	}
+	allocator_free(this);
+	return SUCCESS;
+}
+
+/**
+ * Implements packet_t's clone function.
+ * See #packet_s.clone for description.
+ */
+static status_t clone (private_packet_t *this, packet_t **clone)
+{
+	packet_t *other;
+	other = packet_create();
+	if (other == NULL)
+	{
+		return OUT_OF_RES;
+	}
+	
+	if (this->public.destination != NULL)
+	{
+		this->public.destination->clone(this->public.destination, &(other->destination));
+	}
+	else {
+		other->destination = NULL;
+	}
+	
+	if (this->public.source != NULL)
+	{
+		this->public.source->clone(this->public.source, &(other->source));
+	}
+	else {
+		other->source = NULL;
+	}
+	
+	/* only clone existing chunks :-) */
+	if (this->public.data.ptr != NULL)
+	{
+		other->data.ptr = allocator_clone_bytes(this->public.data.ptr,this->public.data.len);
+		if (other->data.ptr == NULL)
+		{
+			other->destroy(other);
+			return OUT_OF_RES;
+		}
+		other->data.len = this->public.data.len;
+	}
+	else
+	{
+		other->data.ptr = NULL;
+		other->data.len = 0;
+	}
+	*clone = other;
+	return SUCCESS;
+}
+
+
+/*
+ * Documented in header
+ */
+packet_t *packet_create()
+{
+	private_packet_t *this = allocator_alloc_thing(private_packet_t);
+
+	this->public.destroy = (status_t(*) (packet_t *)) destroy;
+	this->public.clone = (status_t(*) (packet_t *,packet_t**))clone;
+	
+	this->public.destination = NULL;
+	this->public.source = NULL;
+
+	this->public.data.len = 0;
+	this->public.data.ptr = NULL;
+	return &(this->public);
+}